AS4921SS35 KFV latch deadbolt 2 hook & 2 roller
Backset: 35mm
Centres/PZ: 92mm
Faceplate: Flat 16mm
Spindle: Split 8mm
Distance between inner hooks: 1190mm
Distance between outer rollers: 1590mm
Operation:Lift Lever or split spindle nightlatch
Old KFV locks have no markings on the face plate, all KFV multipoint locks have a case height of 210mm and a small slot at the top of the case.
24mm Urail versions are becomming obsolete, it is posible to change the face plate using a rivet gun